Herby's attemt @ SS Mod, Noise Mod, MDRT Mod

[Iperfungus]

In the meanwhile, I've 2 560K resistors and MJMP confirmed that 560K is a good value to replace R17.  :headbanger:

About internal OD1 and OD2 trimpots, they are set to 0 already on my MP1 and:

1) there's plenty of gain anyway
2) the squeal issue is still present

As MikeB already did, another test on the third MP-1 with this issue could be a good thing.
Also verify what happens to the squeal with your high gain settings when lowering Output Level pot.

[MikeB]

 I haven't looked at my trim pots yet. But,  I have enjoyed playing with od1 and od2 on 10 by turning down the output volume.  :headbanger:

[herbyguitar]

Lowering the output volume does tame the beast quite a bit.

[Iperfungus]

Lowering the output volume does tame the beast quite a bit.

Try this:

1) set OD1 and OD2 trimpots to lower value
2) create a patch with (very) high gain settings
3) lower Ouput Level pot untile the Beast is 100% quiet

Does it work for you as well?  :lol:

[Iperfungus]

I haven't looked at my trim pots yet. But,  I have enjoyed playing with od1 and od2 on 10 by turning down the output volume.  :headbanger:

Me too!  :thumb-up:

But I'm going to replace R17 and see...  >:D
Furthermore, as soon as he will have some MDRT again, MJMP could help us more.

Where/how do you set Ouput volume pot with OD1 = OD2 = MG = 10.0???  :lol:
It should be around 9 'o clock or less....isn't it?
Or no more than that...
And how do you set the overall EQ?

Maybe we could agree about a test setting for our MP-1s and see if all of the units behave the same...

[herbyguitar]

Tested the MP1 with OD1 and OD2 trim pots all the way down. Squeal is gone, but I still have a lot of hiss at high gain past 6. Plenty of gain on tap. Turning the pots counter clockwise turns them down, correct? Any thoughts?

[rnolan]

I haven't looked at my trim pots yet. But,  I have enjoyed playing with od1 and od2 on 10 by turning down the output volume.  :headbanger:

But then turning up the TC GMaj2 outs to compensate,  Mike has gone back to Woodstock era, howls and squeals  how to tame all that gain... I love it, and good to hear (for me).

[Soloist]

A couple of notes on the G Major 2:
To tame the hiss on heavy distorted tones use the hard gate. For medium distortion use the soft gate. Also if you haven't tried this yet go into the g majors i/o and switch the input ring between pro to consumer, it changes the input sensativity. I believe pro is +4 db and consumer is -10 db. Also change the output ring consumer should be 20 db and pro should be 8 db. This gives an equal output level. :thumb-up:

[herbyguitar]

This conversation has completely lost me. What is Gmag2? There is no gate on the MP1. I'm totally confused...

[Soloist]

G major 2 is a multi effects rack unit made by T.C. Electronics. Sorry didn't mean to lose you. My reply was for Richard.

[MikeB]

Hi Herby,
I use a  tc-electronic g major 2 and Max uses a  g major.  It has an input level that I used to need to turn down to cope with the output from the mp1.   Now that I have reduced the output of the mp1,  I can increase the input level on the gmajor2.   With both ODs on 10, the feedback is wild.  I'm going to have to try using the gate on the g major2.   

I haven't yet looked at my trim pots, but there is no opportunity to hear a hiss at these levels because the feedback is drowning that right out. When I get a chance, I'll do some more experimentation.
Mike

[herbyguitar]

Ah, thanks for the details Mike. I'm running straight into a Mesa 2 fifty. I'm going to hook up my 1101 and see what the gate can do for me.

@Soloist : If I'd have looked at your sig I would have figured it out   :facepalm:

[Soloist]

Hi Herby, I tried the 1101 with the mp1. I didn't like it, tone sucks horribly.  I also run into a 50/50 it sounds awesome.

[herbyguitar]

How did you run it? How did you set it up?

[Soloist]

I tried both set ups, #6 and #7 in the manual. Both 4 cable methods. The effects sounded good but it smoothers the tone of the mp1. I found with the Mp1 it needs an effects unit like the g major2 or g force or something similar to really make it shine.  A BBE sonic maximizer just before the 50/50 also helps if your looking for that 80's tone. :metal: